Condition Statement

Conditionals are put to use in IF THEN ELSE. The following are acceptable uses of IF:

 
	if (EXPRESSION ) { 
		STATEMENTS; 
	} 
	 
	if (EXPRESSION ) { 
		# executed if true 
		STATEMENTS; 
	} ELSE { 
		# executed if false 
		STATEMENTS; 
	} 
 
	if (EXPRESSION ) { 
		STATEMENTS; 
	} elsif { 
		STATEMENTS; 
	# optional additional ELSIF's 
	} else { 
		STATEMENTS; 
	}

Here is an example:

   if($x==14){
           print("\$x is 14");
   } elsif($x==15){
           print("\$x is 15");
   } else{ print("\$x is not 14 or 15");
   }

Unlike C, the braces are not optional - requiring braces avoids the dangling else problem

Perl has no SWITCH statement - it can be imitated several ways, including using ELSIF for each possible case.